<page-header [action]="phActionTpl">
  <ng-template #phActionTpl>
   </ng-template>
</page-header>
<nz-card>
  <button (click)="add()"  nz-button nzType="primary"><i nz-icon nzType="form" nzTheme="outline"></i>新建</button>
  <app-tree-table [data]="url" [columns]="columns"></app-tree-table>
</nz-card>

